Unmanned aerial vehicle shell forming device and forming method

Abstract

The invention relates to the technical field of unmanned aerial vehicle shell machining, in particular to an unmanned aerial vehicle shell forming device and method. The unmanned aerial vehicle shell forming device comprises a rack, supports are symmetrically and fixedly connected to the lower portions of supporting columns on the left side and the right side of the rack correspondingly, lower molds are fixedly assembled on the supports, and first mold grooves are formed in the top faces of the lower molds; the injection mold further comprises two upper molds symmetrically hinged to the top of the lower mold, the upper molds make contact with each other in a rotating mode and are embedded in the top face of the lower mold, injection molding valves are assembled on the upper molds through injection molding holes, and second mold grooves are formed in the inner side faces of the upper molds. The electric lead screw drives the sliding block and the connecting plate to be linked, automatic opening, closing and pressing of the upper mold and the lower mold are achieved, the design of the replaceable mold block and the texture insert is matched, complex shapes and diversified textures can be integrally formed on the unmanned aerial vehicle shell, and various design requirements of integrated forming of the unmanned aerial vehicle shell are met.

Description

Technical Field

[0001] The present invention relates to the technical field of drone shell processing, and in particular to a drone shell forming device and a forming method. Background Art

[0002] With the rapid development of drone technology, drones are finding increasingly widespread application, from aerial photography and agricultural monitoring to logistics and distribution. As the first line of defense against environmental factors, the design and manufacturing quality of drone casings directly impacts the performance and service life of drones. Research on drone casing molding devices and methods aims to improve production efficiency, reduce costs, and enhance product reliability.

[0003] Traditional methods of manufacturing drone shells mainly include the method of separately molding different parts and then assembling them, and the one-piece molding technology. For the method of separately molding different parts and then assembling them, although it allows the most suitable materials and processes to be selected according to the characteristics of each component, multiple molding will increase the process complexity and production cost, and the assembly process is more troublesome, and may also lead to a decrease in the structural stability of the finished product; for the one-piece molding technology, although it can avoid the problems in the above-mentioned assembly process and achieve better overall performance, it usually requires the use of specific molds, which easily limits the flexibility of the design, and the area of ​​the one-piece molded drone shell is large, and it is not easy to demold the newly molded shell and the mold; therefore, both methods have certain defects, so we propose a drone shell molding device and molding method to overcome the above-mentioned defects. Summary of the Invention

[0004] In order to overcome the above-mentioned shortcomings of the prior art, the present invention provides a UAV shell forming device and a forming method.

[0005] The technical implementation scheme of the present invention is: a UAV shell molding device, including a frame, the frame is the load-bearing carrier of the device, the lower parts of the left and right side pillars of the frame are symmetrically fixedly connected with brackets, the brackets are fixedly equipped with a lower mold, the top surface of the lower mold is provided with a mold groove 1, the mold groove 1 of the lower mold is used to mold the lower half shape of the injection molded shell; it also includes two upper molds symmetrically hinged on the top of the lower mold, the upper molds are rotatably contacted and embedded in the top surface of the lower mold, the upper mold is equipped with an injection valve through the injection hole, the injection valve is used to externally connect the injection molding equipment for producing the UAV shell, the inner side surface of the upper mold is provided with a mold groove 2, the mold groove 2 of the upper mold is used In the upper half shape of the injection molding shell, the injection valve is connected to the mold groove 2 of the upper mold through the injection hole, and the upper parts of the pillars on both sides of the frame are rotatably installed with electric screws, and the pillars of the frame are slidably connected with sliding blocks, and the electric screws and the corresponding sliding blocks are threaded together. The lower part of the sliding block is rotatably connected with a connecting plate, and the connecting plate is rotatably connected to the outer wall of the upper mold on the same side at one end away from the sliding block. A sliding groove is provided on the top surface of the lower mold close to the mold groove 1, and a mold block is slidably connected to the slide groove of the lower mold, and the mold block can be slidably embedded in the mold groove 2 of the upper mold. The mold block is used to assist injection molding in the mold groove between the lower mold and the upper mold.

[0006] More preferably, the upper mold is slidably connected to the slide groove on the top surface of the lower mold through a slider, the top surface of the mold block is provided with a groove, and the groove of the mold block and the mold groove of the upper mold are connected with a tension spring, and the tension spring is used to pull the mold block to slide on the slide groove of the lower mold.

[0007] More preferably, a snap-in groove is obliquely provided on the end face of the mold block away from the tension spring, a texture insert is slidably engaged with the snap-in groove of the mold block, a clamping block adapted to the snap-in groove is fixed on one side of the texture insert, the texture insert is used to press out specific bolt holes, circuit grooves and other textures on the injection-molded shell, and the texture insert is snap-into the snap-in groove of the mold block by sliding obliquely from top to bottom through the clamping block.

[0008] More preferably, a top plate is provided on the inner bottom surface of the mold groove 1 of the lower mold, and the top plate is slidably installed in the lower mold through a connecting shaft. The top plate is flush with the inner bottom surface of the mold groove 1 of the lower mold, and the connecting shaft of the top plate is exposed from the bottom of the lower mold.

[0009] More preferably, the bottom surface of the lower mold is fixedly connected to a mounting bracket, and an L-shaped plate is rotatably connected to the mounting bracket, one end of the L-shaped plate and the connecting shaft of the top plate are in contact with each other, and the other end of the L-shaped plate extends to one side of the upper mold, and the L-shaped plate remains horizontal under the action of the connecting shaft, and a top block is fixedly connected to the surface of the upper mold near the L-shaped plate.

[0010] More preferably, the lower mold is provided with a cooling mechanism for cooling the solid injection molded shell, the cooling mechanism includes a liquid pump fixedly installed inside the lower mold, the liquid outlet of the liquid pump is connected to the mold groove 2 of the upper mold through a liquid inlet pipe, and a refrigerator is also fixedly installed inside the lower mold, the liquid inlet of the liquid pump is connected to the cooling outlet of the refrigerator through a pipeline, the cooling inlet of the refrigerator is connected to a return pipe, the end of the return pipe away from the refrigerator is connected to a mold groove of the lower mold, and the return pipe mouth is located at the bottom of the mold groove.

[0011] More preferably, a mounting plate is fixedly provided on the inner wall of the nozzle of the return pipe near the mold groove 1, a water leakage hole is provided on the mounting plate, a plug is slidably connected to the nozzle of the return pipe, a through groove is provided on the outside of the plug, a spring is provided between the plug and the mounting plate, a block is fixed on the inner wall of the nozzle of the return pipe, the block seal is blocked at the through groove of the plug, and the plug is conical.

[0012] A method for forming a drone shell comprises the following steps: S1. Injecting heated and molten injection molding material into the closed cavity formed by the upper mold and the lower mold through the injection valve to fill the mold groove 1 and the mold groove 2, and the mold block and the texture insert assist in completing the integrated molding of the injection molded shell shape and texture; S2. Start the cooling mechanism and use the liquid pump to inject the cooled cooling water into the upper mold cavity. After the cooling water penetrates into the lower mold, it quickly cools down the molded injection molded shell and sets the shape. Then, it flows back to the refrigerator through the return pipe for recycling. S3. The electric screw drives the sliding block to move upward, releasing the pressure exerted by the connecting plate on the upper mold, causing the upper mold to rotate and open. At the same time, the ejector block pushes the L-shaped plate to rotate, and the L-shaped plate then drives the ejector plate to eject the molded injection-molded shell from the bottom of the lower mold, achieving rapid demolding.

[0013] Compared with the prior art, the present invention has the following advantages: 1. The present invention realizes the automatic opening, closing and pressing of the upper and lower molds by driving the sliding block and the connecting plate through an electric screw. Combined with the replaceable mold block and texture insert design, complex shapes and diverse textures can be integrally molded on the drone shell, meeting various design requirements of the integrated molding of the drone shell.

[0014] 2. The present invention can realize automatic ejection and demoulding through the L-shaped plate linkage top plate structure, avoiding manual intervention, improving demoulding efficiency and reducing damage to the shell surface.

[0015] 3. The present invention can also accelerate the production cycle by setting a built-in cooling mechanism and using circulating cooling water to quickly cool down and shape the product, while ensuring that the injection molded shell has stable dimensions and excellent surface quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0017] Figure 2 This is a diagram showing the connection relationship between the upper mold, electric screw, sliding block and connecting plate of the present invention.

[0018] Figure 3 It is a schematic diagram of the matching relationship between the lower mold and the upper mold of the present invention.

[0019] Figure 4 Schematic diagram of the mold blocks and texture inserts in the lower mold and upper mold of the present invention.

[0020] Figure 5 This is a diagram showing the connection relationship between the mold and mold blocks and other components of the present invention.

[0021] Figure 6 Schematic diagram of the matching relationship between the mold block and the texture insert of the present invention.

[0022] Figure 7 This is a diagram showing the connection relationship between the top plate, connecting shaft, mounting bracket, L-shaped plate and top block of the present invention.

[0023] Figure 8 Schematic diagram of the liquid pump, liquid inlet pipe, refrigerator and return pipe of the present invention.

[0024] Figure 9 This is a diagram showing the connection relationship between the liquid pump, refrigerator and return pipe of the present invention.

[0025] Figure 10 for Figure 9 Enlarged view of point A in the middle.

[0026] The markings of the components in the accompanying drawings are as follows: 1. Frame, 2. Bracket, 3. Lower mold, 31. Mold slot 1, 32. Slide, 33. Top plate, 331. Connecting shaft, 4. Upper mold, 41. Injection valve, 42. Mold slot 2, 5. Electric screw, 6. Sliding block, 7. Connecting plate, 8. Injection shell, 9. Mold block, 91. Slider, 92. Tension spring, 93. Snap-in groove, 10. Textured insert, 101. Block, 11. Mounting frame, 111. L-shaped plate, 112. Top block, 12. Cooling mechanism, 121. Liquid pump, 122. Liquid inlet pipe, 123. Refrigerator, 124. Return pipe, 13. Mounting plate, 14. Plug, 141. Stopper, 15. Spring. DETAILED DESCRIPTION

[0027] The following is a clear and complete description of the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] Example 1: A UAV shell forming device, such as Figure 1-Figure 5 As shown, it includes a frame 1, which is the load-bearing carrier of the device. The lower parts of the left and right side pillars of the frame 1 are symmetrically fixedly connected with brackets 2, and a lower mold 3 is fixedly assembled on the bracket 2. The top surface of the lower mold 3 is provided with a mold groove 31, and the mold groove 31 of the lower mold 3 is used to form the lower half shape of the injection molded shell 8; it also includes two upper molds 4 symmetrically hinged on the top of the lower mold 3, the upper mold 4 rotates to contact and fit into the top surface of the lower mold 3, and an injection valve 41 is assembled on the upper mold 4 through the injection hole. The injection valve 41 is used to connect to the injection molding equipment for producing the drone shell. The inner surface of the upper mold 4 A mold groove 2 42 is provided on the side, and the mold groove 2 42 of the upper mold 4 is used to form the upper half shape of the injection molded shell 8. The injection valve 41 is connected to the mold groove 2 42 of the upper mold 4 through the injection hole. The upper part of the pillars on both sides of the frame 1 is rotatably installed with an electric screw 5, and a sliding block 6 is slidably connected to the pillar of the frame 1. The electric screw 5 and the corresponding sliding block 6 are threaded together. The lower part of the sliding block 6 is rotatably connected to a connecting plate 7. The end of the connecting plate 7 is away from the sliding block 6 and is rotatably connected to the outer wall of the upper mold 4 on the same side. A sliding groove 32 is provided on the top surface of the lower mold 3 near the mold groove 1 31. The slide groove 32 of the tool 3 is slidably connected with a mold block 9, and the mold block 9 can be slidably fitted into the mold groove 2 42 of the upper mold 4. The mold block 9 is used to assist in injection molding in the mold groove between the lower mold 3 and the upper mold 4. The electric screw 5 is synchronously activated to drive the sliding block 6. The downward sliding block 6 presses the corresponding upper mold 4 downward through the connecting plate 7 to rotate, and under the action of the continuous and stable downward pressure provided by the sliding block 6 and the connecting plate 7, the upper mold 4 can be rotated and sealed to the lower mold 3, so that an injection molding outer mold is formed between the mold groove 1 31 of the lower mold 3 and the mold groove 2 42 of the upper mold 4. The closed cavity of the shell 8 is then filled with heated and molten plastic between the tightly fitted upper mold 4 and lower mold 3 through the injection valve 41, so that the hot-melt plastic is fully filled in the mold groove 1 31 of the lower mold 3 and the mold groove 2 42 of the upper mold 4, and the mold block 9 is used to assist in injection molding in the mold cavity to form a specific drone shell shape and texture. By replacing different mold blocks 9, the one-piece molded drone injection molded shell 8 can flexibly change the design shape, and then cooperate with the upper mold 4 that rotates and opens and closes on the lower mold 3 to improve the injection molding stability while facilitating the demolding operation of the injection molded shell 8 after molding.

[0029] like Figure 5 and Figure 6As shown, the upper mold 4 is slidably connected to the slide groove 32 on the top surface of the lower mold 3 through a slider 91, and a groove is provided on the top surface of the mold block 9. The groove of the mold block 9 and the mold groove 2 42 of the upper mold 4 are connected with a tension spring 92. The tension spring 92 is used to pull the mold block 9 to slide on the slide groove 32 of the lower mold 3. When the upper mold 4 is rotated and engaged on the lower mold 3, the upper mold 4 will press the mold block 9 to slide and engage with the mold groove 2 42, thereby assisting the lower mold 3 and the upper mold 4 to perform injection molding. When the upper mold 4 is rotated and opened on the lower mold 3, the upper mold 4 can act on the mold block 9 through the tension spring 92, so that the mold block 9 slides open along the slide groove 32, which is convenient for the subsequent demolding of the injection molded shell 8 formed in the lower mold 3.

[0030] like Figure 4-Figure 6 As shown, a snap-in groove 93 is obliquely provided on the end face of the mold block 9 away from the tension spring 92, and a texture insert 10 is slidably engaged with the snap-in groove 93 of the mold block 9. A clamping block 101 adapted to the snap-in groove 93 is fixed on one side of the texture insert 10. The texture insert 10 is used to press out specific bolt holes, circuit grooves and other textures on the injection molded shell 8. The texture insert 10 is slidably engaged with the snap-in groove 93 of the mold block 9 from top to bottom through the clamping block 101, so that the texture insert 10 can be stably engaged with the mold block 9, thereby assisting the mold in pressing different textures on the injection molded shell 8. When the texture of the injection molded shell 8 needs to be changed, it can be done by replacing the texture insert 10 on the mold block 9, thereby improving the scope of application of the present molding device.

[0031] like Figure 5 As shown, a top plate 33 is provided on the inner bottom surface of the mold groove 31 of the lower mold 3. The top plate 33 is slidably installed in the lower mold 3 through a connecting shaft 331. The top plate 33 is flush with the inner bottom surface of the mold groove 31 of the lower mold 3. The connecting shaft 331 of the top plate 33 is exposed from the bottom of the lower mold 3. By acting upward on the connecting shaft 331, the top plate 33 is driven to be lifted upward from the mold groove 31 of the lower mold 3, which can assist in demolding the integrated UAV injection molding shell 8.

[0032] When using this device to perform injection molding on the shell of a drone, the operator first ensures that the required mold block 9 has been correctly installed on the slide groove 32 on the top surface of the lower mold 3. Then, according to the design requirements of the drone shell, the texture insert 10 with the card block 101 is slid from top to bottom and inserted into the card groove 93 on the end surface of the mold block 9 to complete the detailed configuration of the mold cavity. Subsequently, the electric screw 5 on the frame 1 is started synchronously. Multiple electric screws 5 rotate synchronously and drive the sliding block 6 to move steadily downward along the guide track of the support of the frame 1. The downward sliding block 6 converts the linear downward force into a stable downward force on the outer wall of the upper mold 4 on the same side through the connecting plate 7 connected by the lower rotation. Under the action of this continuous and uniform downward force, the two upper molds 4 rotate around the hinge point with the top of the lower mold 3. In the process of the upper mold 4 rotating downward and fitting into the lower mold 3, the inner side of the upper mold 4 first contacts and gradually presses the top surface of the lower mold 3. At the same time, the inner wall of the upper mold 4 contacts and presses the mold block 9 on the slide groove 32 of the lower mold 3. After being pressed, the mold block 9 moves along the lower mold 3. The slide groove 32 of the mold 3 slides toward the center of the upper mold 4 until it is completely slid and engaged into the mold groove 2 42 of the upper mold 4. Finally, under the action of the continuous downward pressure of the connecting plate 7, the upper mold 4 reaches a complete and tight sealing engagement with the top surface of the lower mold 3, forming a closed injection molding chamber for molding the UAV shell. After confirming that the mold is in place and sealed, the operator injects the molten thermoplastic plastic raw material provided by the external injection molding equipment into the closed chamber between the upper mold 4 and the lower mold 3 at an appropriate pressure and speed through the injection valve 41 assembled on the upper mold 4. Driven by pressure, the molten plastic flows rapidly, fully filling the space between the mold groove 1 31 and the mold groove 2 42, and flows into the specific concave and convex structure formed by the mold block 9 and the texture insert 10, completing the integrated injection molding of the main shape of the UAV shell, the internal structure (such as the reinforcement ribs and buckles formed by the mold block 9), and the surface texture (such as the bolt holes, circuit board grooves, heat dissipation grilles, etc. formed by the texture insert 10), ensuring that the cavity of the injection molded shell 8 is full.

[0033] Example 2: Based on Example 1, Figure 7As shown, the bottom surface of the lower mold 3 is fixedly connected to the mounting frame 11, and the mounting frame 11 is rotatably connected to the L-shaped plate 111. One end of the L-shaped plate 111 and the connecting shaft 331 of the top plate 33 are in contact with each other, and the other end of the L-shaped plate 111 extends to one side of the upper mold 4. The L-shaped plate 111 remains horizontal under the action of the connecting shaft 331. The surface of the upper mold 4 is fixedly connected to a top block 112 near the L-shaped plate 111. When the upper mold 4 is rotated open from the lower mold 3, the rotating upper mold 4 presses the L-shaped plate 111 through the top block 112, so that the L-shaped plate 111 rotates at the hinge point of the mounting frame 11 and presses the connecting shaft 331, so that the connecting shaft 331 drives the top plate 33 to lift upward from the mold groove 31 of the lower mold 3, thereby assisting the injection molded shell 8 formed in the mold groove 31 to complete the demolding operation.

[0034] like Figure 1 、 Figure 8 and Figure 9 As shown, the lower mold 3 is provided with a cooling mechanism 12 for cooling the solid injection molded shell 8. The cooling mechanism 12 includes a liquid pump 121 fixedly installed inside the lower mold 3. The liquid outlet of the liquid pump 121 is connected to the mold groove 42 of the upper mold 4 through a liquid inlet pipe 122. A refrigerator 123 is also fixedly installed inside the lower mold 3. The liquid inlet of the liquid pump 121 is connected to the cooling outlet of the refrigerator 123 through a pipeline. The cooling inlet of the refrigerator 123 is connected to a return pipe 124. The end of the return pipe 124 away from the refrigerator 123 is connected to the mold groove 31 of the lower mold 3. The pipe mouth 124 is located at the bottom of the mold groove 1 31. After the injection molded shell 8 between the lower mold 3 and the upper mold 4 is fully solidified, the cooling water cooled by the refrigerator 123 is added to the mold groove 2 42 of the upper mold 4 through the liquid inlet pipe 122 by the liquid pump 121. The cooling water will penetrate downward from the mold groove 2 42 to the mold groove 1 31 of the lower mold 3, thereby accelerating the cooling of the high-temperature injection molded shell 8 after molding. At the same time, the injection molded shell 8 will gradually separate from the lower mold 3 and the upper mold 4. The cooling water in the mold groove 1 31 will eventually flow back to the refrigerator 123 through the return pipe 124 for circulation cooling.

[0035] like Figure 9 and Figure 10As shown, a mounting plate 13 is fixedly provided on the inner wall of the nozzle of the return pipe 124 near the mold groove 31, and a water leakage hole is opened on the mounting plate 13. A plug 14 is slidably connected to the nozzle of the return pipe 124. A through groove is opened on the outside of the plug 14. A spring 15 is provided between the plug 14 and the mounting plate 13. A stopper 141 is fixed on the inner wall of the nozzle of the return pipe 124. The stopper 141 is sealed and blocked at the through groove of the plug 14. The plug 14 is conical and is pressed against the spring 15. Under this action, the plug 14 can block the injection molding in the mold groove 31 from naturally flowing into the return pipe 124. During cooling, the cooling water continuously added between the lower mold 3 and the upper mold 4 can press the plug 14 downward, so that the plug 14 overcomes the elastic force of the spring 15 and moves downward, so that the block 141 no longer blocks the through groove of the plug 14, so that the plug 14 is opened at the pipe mouth of the return pipe 124, so that the cooling water can flow back from the mold groove 31 to the refrigerator 123 for circulating refrigeration.

[0036] After the injection molding pressure holding process is completed, the molten plastic is initially solidified and fixed in the mold cavity (but is still in a high temperature state). At this time, the cooling mechanism 12 integrated in the lower mold 3 is started, and then the liquid pump 121 starts to work. The liquid pump 121 draws low-temperature cooling water that is continuously cooled by the refrigerator 123 from its liquid inlet through the pipeline. After the low-temperature cooling water is pressurized by the liquid pump 121, it is forced to be injected into the mold groove 42 space of the upper mold 4 from the liquid outlet of the liquid pump 121 through the liquid inlet pipe 122. The low-temperature cooling water injected into the mold groove 42, under the action of gravity and the subsequent water flow, evenly penetrates from top to bottom through the outer surface of the upper half of the molded injection shell 8, and continues to penetrate downward. The cooling water flows into the mold groove 31 space of the lower mold 3, wraps and flushes the outer surface of the lower half of the injection molding shell 8, and the continuously injected cooling water gathers at the bottom of the mold groove 31. The generated water pressure acts on the conical plug 14 set in the nozzle of the return pipe 124. The water pressure overcomes the pre-tightening elastic force of the spring 15 between the plug 14 and the mounting plate 13, and the cooling water pushes the plug 14 to move downward. After the plug 14 moves downward, the through groove opened on the outside of the plug 14 drops accordingly and breaks away from the sealing block 141 fixed on the inner wall of the nozzle of the return pipe 124, so that the cooling water gathered at the bottom of the mold groove 31 can pass through the water leakage hole on the mounting plate 13 and flow into the through groove opened by the plug 14. , enters the return pipe 124, and the cooling water finally flows back to the refrigeration inlet of the refrigerator 123 through the return pipe 124. After being cooled again by the refrigerator 123, it is pumped out again by the liquid pump 121 to form an efficient closed-cycle cooling circuit. This process quickly and efficiently takes away the heat inside the injection-molded shell 8, accelerates its overall cooling and final solidification. After the injection-molded shell 8 is fully cooled and solidified, and the temperature drops to the safe demoulding range, the cooling mechanism 12 stops working, and the electric screw 5 rotates in the opposite direction, driving the sliding blocks 6 on both sides to move upward synchronously along the support of the frame 1. The upward movement of the sliding block 6 drives the connecting plate 7 to relax the downward pressure on the outer wall of the upper mold 4, and then pulls the upper mold. The tool 4 is rotated and opened from the lower mold 3. As the upper mold 4 opens and the pressure on the mold block 9 is released, the upper mold 4 effectively pulls the mold block 9 to slide outward along the slide groove 32 of the lower mold 3 through the tension spring 92, so that the mold block 9 can smoothly withdraw from the internal structure of the formed injection molded shell 8 and return to the initial position. Then the texture insert 10 is removed and space is made for demoulding. At the same time, the rotating upper mold 4 presses the L-shaped plate 111 through the top block 112, so that the L-shaped plate 111 rotates on the mounting frame 11 and squeezes the connecting shaft 331. Finally, the connecting shaft 331 drives the top plate 33 to steadily lift up the cooled and shaped injection molded shell 8 from the inner bottom surface of the mold groove 31, thereby completing the demoulding operation.

[0037] A method for forming a drone shell comprises the following steps: S1. Inject the heated and melted injection molding material into the closed cavity formed by the upper mold 4 and the lower mold 3 through the injection valve 41, filling the mold groove 1 31 and the mold groove 2 42, and the mold block 9 and the texture insert 10 assist in completing the integrated molding of the shape and texture of the injection molded shell 8; S2. Start the cooling mechanism 12 and use the liquid pump 121 to inject the cooled cooling water into the cavity of the upper mold 4. After the cooling water penetrates into the lower mold 3, it quickly cools down the molded injection shell 8 and sets the shape. Then, it flows back to the refrigerator 123 through the reflux pipe 124 for recycling. S3, the electric screw 5 drives the sliding block 6 to move upward, releasing the pressure exerted by the connecting plate 7 on the upper mold 4, so that the upper mold 4 rotates and opens. At the same time, the top block 112 pushes the L-shaped plate 111 to rotate, and the L-shaped plate 111 then drives the top plate 33 to eject the molded injection shell 8 from the bottom of the lower mold 3, realizing rapid demolding.

[0038] The technical principles of the embodiments of the present invention have been described above in conjunction with specific embodiments. These descriptions are intended solely to explain the principles of the embodiments of the present invention and should not be construed in any way as limiting the scope of protection of the embodiments of the present invention. Based on the explanations herein, those skilled in the art will be able to conceive of other specific implementations of the embodiments of the present invention without inventive effort, and such implementations will fall within the scope of protection of the embodiments of the present invention.

Claims

1. A drone shell molding device, comprising a frame (1), brackets (2) symmetrically fixed to the lower parts of both side pillars of the frame (1), a lower mold (3) fixedly mounted on the bracket (2), and a mold groove (31) formed on the top surface of the lower mold (3); Its characteristics are: The machine also includes two upper molds (4) symmetrically hinged on the top of the lower mold (3), the upper molds (4) are rotatably contacted and embedded in the top surface of the lower mold (3), the upper mold (4) is equipped with an injection valve (41) through an injection hole, the inner side surface of the upper mold (4) is provided with a mold groove (42), the injection valve (41) is connected to the mold groove (42) of the upper mold (4) through the injection hole, the upper part of the pillars on both sides of the frame (1) are rotatably installed with electric screw rods (5), and the pillars of the frame (1) are slidably connected with sliding blocks (6) The electric screw (5) and the corresponding sliding block (6) are threadedly matched, and the lower part of the sliding block (6) is rotatably connected to a connecting plate (7), and the end of the connecting plate (7) away from the sliding block (6) is rotatably connected to the outer wall of the upper mold (4) on the same side. A sliding groove (32) is provided on the top surface of the lower mold (3) near the mold groove 1 (31), and a mold block (9) for auxiliary injection molding is slidably connected to the sliding groove (32) of the lower mold (3), and the mold block (9) can be slidably fitted into the mold groove 2 (42) of the upper mold (4).

2. The UAV shell forming device according to claim 1, characterized in that: The upper mold (4) is slidably connected to the slide groove (32) on the top surface of the lower mold (3) through a slider (91), and a groove is provided on the top surface of the mold block (9). The groove of the mold block (9) and the mold groove 2 (42) of the upper mold (4) are connected by a tension spring (92).

3. The UAV shell forming device according to claim 2, characterized in that: A clamping groove (93) is obliquely provided on the end surface of the mold block (9) away from the tension spring (92), a texture insert (10) is slidably clamped at the clamping groove (93) of the mold block (9), and a clamping block (101) adapted to the clamping groove (93) is fixed on one side of the texture insert (10).

4. The UAV shell forming device according to claim 3 is characterized in that: A top plate (33) is provided on the inner bottom surface of the mold groove (31) of the lower mold (3). The top plate (33) is slidably mounted in the lower mold (3) via a connecting shaft (331). The top plate (33) is flush with the inner bottom surface of the mold groove (31) of the lower mold (3), and the connecting shaft (331) of the top plate (33) is exposed from the bottom of the lower mold (3).

5. The UAV shell forming device according to claim 4 is characterized in that: The bottom surface of the lower mold (3) is fixedly connected to a mounting frame (11), and an L-shaped plate (111) is rotatably connected to the mounting frame (11). One end of the L-shaped plate (111) and a connecting shaft (331) of the top plate (33) are in contact with each other, and the other end of the L-shaped plate (111) extends to one side of the upper mold (4). The L-shaped plate (111) is kept in a horizontal state under the action of the connecting shaft (331), and a top block (112) is fixedly connected to the surface of the upper mold (4) near the L-shaped plate (111).

6. The UAV shell forming device according to claim 5, characterized in that: The lower mold (3) is provided with a cooling mechanism (12) for cooling the solid injection molded shell (8), and the cooling mechanism (12) includes a liquid pump (121) fixedly installed inside the lower mold (3), and the liquid outlet of the liquid pump (121) is connected to the mold groove 2 (42) of the upper mold (4) through the liquid inlet pipe (122). The lower mold (3) is also fixedly equipped with a refrigerator (123), and the liquid inlet of the liquid pump (121) is connected to the refrigerator outlet of the refrigerator (123) through a pipeline. The refrigerator inlet of the refrigerator (123) is connected to a return pipe (124), and the end of the return pipe (124) away from the refrigerator (123) is connected to the mold groove 1 (31) of the lower mold (3), and the pipe mouth of the return pipe (124) is located at the bottom of the mold groove 1 (31).

7. The UAV shell forming device according to claim 6, characterized in that: A mounting plate (13) is fixedly provided on the inner wall of the nozzle of the return pipe (124) near the mold groove (31), and a water leakage hole is provided on the mounting plate (13). A plug (14) is slidably connected to the nozzle of the return pipe (124), and a through groove is provided on the outer side of the plug (14). A spring (15) is provided between the plug (14) and the mounting plate (13). A stopper (141) is fixed on the inner wall of the nozzle of the return pipe (124), and the stopper (141) is sealed and blocked at the through groove of the plug (14).

8. A method for forming a drone shell, using the drone shell forming device according to claim 7, characterized in that: The following steps are involved: S1, injecting the heated and melted injection molding material into the closed cavity formed by the upper mold (4) and the lower mold (3) through the injection molding valve (41), filling the mold groove 1 (31) and the mold groove 2 (42), and assisting with the mold block (9) and the texture insert (10) to complete the integrated molding of the shape and texture of the injection molded shell (8); S2, start the cooling mechanism (12), use the liquid pump (121) to inject the cooled cooling water into the cavity of the upper mold (4), and the cooling water penetrates into the lower mold (3) to quickly cool the molded injection-molded shell (8) and then flows back to the refrigerator (123) through the return pipe (124) for recycling; S3, the electric screw (5) drives the sliding block (6) to move upward, releasing the pressure applied by the connecting plate (7) to the upper mold (4), so that the upper mold (4) rotates and opens, and at the same time the top block (112) pushes the L-shaped plate (111) to rotate, and the L-shaped plate (111) then drives the top plate (33) to eject the molded injection shell (8) from the bottom of the lower mold (3), thereby achieving rapid demoulding.

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